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I (No Modem v D. A. BEGKWITH.

LIBRARY STACK. I N0. 539-,662. Patented May'21, 1895.

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1 A I r I ATTORNEYS.

UNITED STATES PATENT OFFICE.

DEAN A. BECKVVITH, OF YORK, N. Y.

LIBRARY-STAG K.

SPECIFICATION forming part of Letters Patent No. 539,662,dated May 21,1895.

Application filed November 13, 1894- Serial No. 528,611. (No model.)

To all whom it may concern.-

Be it known that I, DEAN A. BEOKWITH, of New York city, in the countyand State of New York, have invented a. new and Improved Library- Stack,of which the following is a full, clear, and exact description.-

The invention relates to library furniture, and its object is to providea new and improved library stack, which is comparatively simple anddurable in construction, and arranged to permit of conveniently removingthe shelves, or placing the same in proper position, without danger ofaccidental displacement of the shelves.

The invention consists principally of a shelf, provided at its sideswith depending flanges adapted to drop into position between thesupporting posts.

The invention also consists of certain parts and details andcombinations of the same, as will be fully described hereinafter, andthen pointed out in the claim.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the views.

Figure 1 is a front elevation of the improvement with parts in section.verse section of the same on the line 2 2 of Fig. 1. Fig. 3 is aperspective view of the shelf-supporting device. Fig. 4 is an invertedplan view of one of the shelves, and Fig. 5 is a perspective view of thesame.

The improved library stack is provided with a suitable casing A, havingsets of front posts B and rear posts 0, supporting on their sides lugsD-and D, respectively, of which two corresponding lugs D, D on alignedfront and rear posts are connected with each other by a connecting plateD projecting a suitable distance above the top of the lugs, as isplainly illustrated in the drawings. The lugs D and D, and connectingplate D form the supporting device for the shelves E, it beingunderstood that two such devices are necessary for each shelf.

The shelves are preferably made of metal, but other suitable materialmay be employed, and each shelf is provided on the sides of its bodyportion with downwardly depending Fig. 2 is a trans.

flanges E, each having an extension E adapt ed to fit in between twocorresponding lugs D, D of the supporting device, so that the ends ofthe flanges E rest on the lugs.

The ends of the extensions E are preferably beveled, as plainlyindicated in Fig. 5, so as to permit of conveniently lifting the shelvesto permit of an easy removal of the shelves whenever desired, it beingunderstood, that it is necessary to lift the shelves to bring theextensions on top of the front lugs D, D, in order to remove theshelves.

From the. front end of each shelf E, depends a flange E connected withthe forward ends of the side flanges E, and the rear end of each shelfis provided with a flange E likewise depending and serving togivestrength to the shelf. Now when the shelf is in position, as shown inFig. 1, then the front flange E completely covers up the supportingdevice of the shelves, and consequently, the front appearance of thelibrary stack is greatly improved. Furthermore, the extensions of theside flanges, when in position between the sides of the lugs D, D,prevent accidental displacement of the shelves, and consequently theshelves are not liable to slip, but are securely held in the stack.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent In a library stack, the combination of a casinghaving front and rear posts with inwardly projecting lugs, a connectingplate extending between the front and rear posts at each side andsecured to the ends of said lugs and being held away from the posts ofthe easing thereby and a shelf formed on its sides with dependingflanges adapted to take over the connecting plates, each flange having anotch at each end to receive one of the said lugs, and having betweensaid notches a depending extension adapted to drop between the lugs andhold the shelf in place, substantially as set forth.

DEAN A. BECK WITH.

